US Patent Issued to Western Digital Technologies on July 1 for "DC and synchronized energy assisted perpendicular magnetic recording (EPMR) driver circuit for hard disk drive (HDD)" (California, Minnesota Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,347,467, issued on July 1, was assigned to Western Digital Technologies Inc. (San Jose, Calif.).

"DC and synchronized energy assisted perpendicular magnetic recording (EPMR) driver circuit for hard disk drive (HDD)" was invented by Joey M. Poss (Rochester, Minn.), Yunfei Ding (Fremont, Calif.) and John T. Contreras (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various illustrative aspects are directed to a data storage device comprising a storage medium and a head configured to access the storage medium. The head comprises a first write assist element and a second write assist element. Control circuitry for driving the head is configu...